I had my needles backwards in my head on my last post, so I modified it. I'm running the 7dh3. I want to try the 7dh2, since it is leaner. I screwed up when I originally bought my carb and ordered the snowmobile version. I've had to change so much crap around to get it to work right. I've lost track of a lot of stuff. Being a snowmobile carb it had the 7dh2 needle originally, but I have since lost it.

I researched the differences in the two versions of the carbs and noticed the snowmobile carb had a 0.7 air jet and the bike version had a 0.5 air jet. So I went to order the 0.5, but sudco didn't have it when I tried several years ago. So I'm curious if that is part of the problem also. The thing is, I have never found clarification as to which air jet is leaner. I am certain that a physically bigger air jet is leaner, but the scale could be inverted, for all I know, to save confusion, since larger numbers usually indicate richer in a carburator. (If that makes any sense)

So which way is it? Is 0.5 richer or leaner than 0.7?